Numeric Range Comparison Without Minimum Check Affecting exim package, versions <4.99.5-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published19 Aug 2026
- disclosed30 May 2026
Introduced: 30 May 2026
CVE-2026-48840 (opens in a new tab)How to fix?
Upgrade Wolfi exim to version 4.99.5-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exim package and not the exim package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of uninitialized stack memory values to a client.